/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 */

/**/

public class StringGenerator {

    private IntGenerator ig;

    private CharGenerator cg;

    private int limit;

    private int count = 0;

    public StringGenerator(IntGenerator ig, CharGenerator cg, int limit) {

        this.ig = ig;

        this.cg = cg;

        this.limit = limit;

    }

    public StringGenerator(IntGenerator ig, CharGenerator cg) {

        this(ig, cg, -1);

    }

    public StringGenerator(IntGenerator ig, int limit) {

        this(ig, new CharGenerator(ig), limit);

    }

    public StringGenerator(IntGenerator ig) {

        this(ig, -1);

    }

    public StringGenerator(int limit) {

        this(new IntGenerator(), limit);

    }

    public StringGenerator() {

        this(new IntGenerator());

    }

    public String next() {

        if ((count >= limit) && (limit >= 0))

            return null;

        int len = ig.next(80);

        StringBuffer s = new StringBuffer(len);

        for (int i = 0; i < len; i++)

            s.append(cg.next());

        count++;

        return s.toString();

    }

}